mirror of
https://gitlab.freedesktop.org/libfprint/libfprint.git
synced 2026-09-09 12:46:50 +00:00
82 lines
2.3 KiB
Python
Executable File
82 lines
2.3 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Update the hardcoded allowlist of currently unsupported devices in
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# fprint-list-udev-hwdb.c from the libfprint wiki page.
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import argparse
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import os
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import re
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import sys
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from urllib.request import urlopen
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DEFAULT_URL = (
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"https://gitlab.freedesktop.org/libfprint/wiki/-/wikis/Unsupported-Devices.md"
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)
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ID_RE = re.compile(r"\|.*([0-9a-fA-F]{4}):([0-9a-fA-F]{4}).*\|.*")
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BEGIN_MARKER = " /* --- BEGIN GENERATED IDS --- */\n"
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END_MARKER = " /* --- END GENERATED IDS --- */\n"
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def fetch(url):
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try:
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with urlopen(url) as response:
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return response.read().decode("utf-8")
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except OSError as exc:
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print(f"Could not download {url}: {exc}", file=sys.stderr)
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sys.exit(77)
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def parse_entries(text):
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devices = set()
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for line in text.splitlines():
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match = ID_RE.match(line)
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if match:
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devices.add((match.group(1).lower(), match.group(2).lower()))
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return [f" {{ .vid = 0x{vid}, .pid = 0x{pid} }}," for vid, pid in sorted(devices)]
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def main():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("source_file", help="Path to hwdb file")
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parser.add_argument("--url", default=DEFAULT_URL, help="Wiki page URL")
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parser.add_argument(
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"--check",
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action="store_true",
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help="Do not modify files, fail if an update is needed",
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)
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args = parser.parse_args()
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entries = parse_entries(fetch(args.url))
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if not entries:
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sys.exit("No device ids found on the wiki page")
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with open(args.source_file, "r", encoding="utf-8") as f:
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content = f.read()
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before, begin, rest = content.partition(BEGIN_MARKER)
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_, end, after = rest.partition(END_MARKER)
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if not begin or not end:
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sys.exit("Could not locate generated id markers in " + args.source_file)
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block = BEGIN_MARKER + "\n".join(entries) + "\n" + END_MARKER
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new_content = before + block + after
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if new_content == content:
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print("allowlist_id_table is already up to date")
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return
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if args.check:
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print("allowlist_id_table is out of date", file=sys.stderr)
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sys.exit(1)
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with open(args.source_file, "w", encoding="utf-8") as f:
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f.write(new_content)
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print(f"Updated allowlist_id_table with {len(entries)} entries")
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if __name__ == "__main__":
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main()
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